<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <!-- 练习1 -->
    <div>
        <!-- 输入框 -->
        <span>您的成绩：</span>
        <input id="ip" type="number"> <br>
        <!-- 文本 -->
        <span id="sp">成绩等级：-</span> <br>
        <!-- 按钮 -->
        <button id="btn">评定</button>
    </div>

    <!-- 跳转页面 -->
    <hr>
    <div>
        <button id="btn_2" onclick="goToBD()">跳转</button>
    </div>

    <!-- 练习2 -->
    <hr>
    <div>
        <h5>登录</h5>
        <span>账号：</span><input id="ip_user" type="text"> <br>
        <span>密码：</span><input id="ip_psw" type="password"> <br>
        <button id="btn_3">登录</button>
    </div>


    <script src="./script.js"></script>
</body>

</html>